Foif RTS680 Series - Resection Calculation Process

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12.3 Resection Calculation Process
The N, E coordinates are found by angle and distance measurement equations, and the
instrument occupied coordinates are found using the least squares method. The Z
coordinate is found by treating the average value as the instrument occupied coordinate.
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Calculation begins
The normal equation is prepared
Hypothetical coordinates are found
Instrument occupied coordinates are calculated
The measured equation for the angle is prepared
Calculation of the Z coordinate
The measured equation for the distance is prepared
Calculation ends
Difference from the hypothetica
l
coordinates ≦ 0.5mm
N
o
Yes
Iterate 3 times